Question

-2(4х+5)+5(2х-4)=15-5(2х+3)=

Answer 1

Ответ:

8x-10+10x-20=15-10x-15

2x-30=-10 x
2x+10 x=30
12x= 30
x= 2,5

Answer 2

Пошаговое объяснение:

вроде как правильно я старалса

Answer 3

Let's solve the equation step by step.

First, let's simplify the expression on the left side of the first equation: -2(4x + 5) + 5(2x - 4)

Distribute the -2 and 5: -8x - 10 + 10x - 20

Combine like terms: (-8x + 10x) + (-10 - 20) 2x - 30

Now let's simplify the expression on the right side of the first equation: 15 - 5(2x + 3)

Distribute the -5: 15 - 10x - 15

Combine like terms: -10x

Now let's set the two simplified expressions equal to each other: 2x - 30 = -10x

Add 10x to both sides: 2x + 10x - 30 = -10x + 10x 12x - 30 = 0

Add 30 to both sides: 12x - 30 + 30 = 0 + 30 12x = 30

Divide both sides by 12: (12x)/12 = 30/12 x = 2.5

Therefore, the solution to the equation is x = 2.5.